CN105307293B - The electric rice cooker heated circuit of 220V AC voltage power supply - Google Patents
The electric rice cooker heated circuit of 220V AC voltage power supply Download PDFInfo
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- CN105307293B CN105307293B CN201510830303.0A CN201510830303A CN105307293B CN 105307293 B CN105307293 B CN 105307293B CN 201510830303 A CN201510830303 A CN 201510830303A CN 105307293 B CN105307293 B CN 105307293B
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Abstract
The electric rice cooker heated circuit of 220V AC voltage power supply, is related to household electrical appliances field of energy-saving technology.The present invention is to solve the existing irrational problem of electric rice cooker heated mode.The electric rice cooker heated circuit of 220V AC voltage power supply of the present invention, the temperature variation obtained using waveform output module collecting temperature sensor, then the pulsewidth and frequency of output waveform are controlled according to the temperature variation, and then controls the heating power size variation of heating dish.The present invention allows circuit to be constantly in the temperature that working condition to monitor heating dish in real time, in the absence of caused by traditional electric rice cooker heated circuit start the defects of surge current power consumption, closed-loop control is integrally formed, heating dish is allowed to be constantly in temperature-controlled state, make the heating dish real-time reception small-pulse effect DC pulse current of keeping warm mode, ensure the stable heating of heating dish, reach the purpose for reducing energy consumption, it is final to obtain the reasonable mode of heating that energy consumption is small, feedback is fast.
Description
Technical field
The invention belongs to field of household appliances, more particularly to a kind of electric cooker energy-saving circuit.
Background technology
Electric cooker is electrical appliance necessary to each family, during the work of the electric cooker used in present family,
Electric cooker improves rapidly temperature when starting, and after temperature reaches setting value and setting time, deenergization, then utilizes tradition
The function of mechanical thermostat TEMP detect the temperature change of electric rice cooker heated disk, when the temperature decreases, then open again
Dynamic heater, and power consumption can be increased by restarting, while the CPU of electric cooker controller can also produce delay, cause what is steamed
Rice is half-cooked.Therefore, the mode of heating of existing electric cooker is very unreasonable.
The content of the invention
The present invention is to solve the existing irrational problem of electric rice cooker heated mode, now provides 220V AC voltage power supply
Electric rice cooker heated circuit.
The electric rice cooker heated circuit of 220V AC voltage power supply, it includes：Electronic temperature transmitter 1, waveform output module
2nd, drive amplification module 3, power output module 4, filter capacitor C4, bridge rectifier D1 and fuse F1；
Electronic temperature transmitter 1 is used for the temperature for gathering electric rice cooker heated disk 5 in real time,
The temperature signal input of the temperature signal output end connection waveform output module 2 of electronic temperature transmitter 1, waveform
The Waveform Input end of the waveform output end of output module 2 connection drive amplification module 3, the amplified signal output of drive amplification module 3
The amplified signal input of end connection power output module 4, the power take-off connection electric rice cooker heated disk of power output module 4
5 power input, the power end of electric rice cooker heated disk 5 simultaneously connect filter capacitor C4 positive pole and bridge rectifier D1
One DC output end, filter capacitor C4 negative pole and bridge rectifier D1 another DC output end connect power supply simultaneously
Ground, bridge rectifier D1 ac input end connection fuse F1 one end, the fuse F1 other end and bridge-type are whole
The positive pole of current circuit D1 another ac input end access 220V AC voltage, bridge rectifier D1 another exchange are defeated
Enter the negative pole of end connection 220V AC voltage.
The electric rice cooker heated circuit of 220V AC voltage power supply of the present invention, it is direct to employ electronic temperature transmitter
Collecting temperature replaces the temperature acquisition mode of traditional electric cooker mechanical thermostat hard contact, makes temperature acquisition speed faster, essence
Du Genggao；Meanwhile the electronic temperature transmitter of the invention used completely eliminates the problem of oxidation of original temperature controller hard contact,
Fundamentally solve the defects of equipment consumption is fast, cost has been saved from long-range use angle.
Also, the temperature variation that the present invention is obtained using waveform output module collecting temperature sensor, then basis should
Temperature variation controls the pulsewidth and frequency of output waveform, and then controls the heating power size variation of heating dish.The present invention from
When fundamentally changing traditional electric cooker temperature control, the mode of direct-electrifying again after being powered off to heating dish, but allow circuit to locate always
To monitor the temperature of heating dish in real time in working condition, connected in the absence of traditional electric rice cooker heated circuit contact caused by starting
The defects of surge current power consumption, closed-loop control is integrally formed, allows heating dish to be constantly in temperature-controlled state, make keeping warm mode
Heating dish real-time reception small-pulse effect DC pulse current, ensure the stable heating of heating dish, reach the purpose for reducing energy consumption, finally
Obtain the reasonable mode of heating that energy consumption is small, feedback is fast.
Traditional electric cooker is AC electric-heating, and electric current is unstable.Invention increases rectifier circuit, realize exchange with
The conversion of direct current, is heated using DC current, and DC current is more stable compared with alternating current by contrast, extends heating
In the life-span of disk and whole heater circuit, further reduce cost.
Brief description of the drawings
Fig. 1 is the structural representation of the electric rice cooker heated circuit of 220V AC voltage of the present invention power supply.
Embodiment
Embodiment one：Reference picture 1 illustrates present embodiment, the 220V AC voltage described in present embodiment
The electric rice cooker heated circuit of power supply, it includes：Electronic temperature transmitter 1, waveform output module 2, drive amplification module 3, power
Output module 4, filter capacitor C4, bridge rectifier D1 and fuse F1；
Electronic temperature transmitter 1 is used for the temperature for gathering electric rice cooker heated disk 5 in real time,
The temperature signal input of the temperature signal output end connection waveform output module 2 of electronic temperature transmitter 1, waveform
The Waveform Input end of the waveform output end of output module 2 connection drive amplification module 3, the amplified signal output of drive amplification module 3
The amplified signal input of end connection power output module 4, the power take-off connection electric rice cooker heated disk of power output module 4
5 power input, the power end of electric rice cooker heated disk 5 simultaneously connect filter capacitor C4 positive pole and bridge rectifier D1
One DC output end, filter capacitor C4 negative pole and bridge rectifier D1 another DC output end connect power supply simultaneously
Ground, bridge rectifier D1 ac input end connection fuse F1 one end, the fuse F1 other end and bridge-type are whole
The positive pole of current circuit D1 another ac input end access 220V AC voltage, bridge rectifier D1 another exchange are defeated
Enter the negative pole of end connection 220V AC voltage.
The electric rice cooker heated circuit of 220V AC voltage power supply described in present embodiment, utilizes electronic temperature transmitter 1
The temperature of collection electric rice cooker heated disk 5 in real time, is then forwarded to waveform output module 2, waveform output module 2 is according to electron temperature
The signal magnitude that sensor 1 feeds back controls the frequency of output waveform and dutycycle, when feeding back weaker, then the frequency of output waveform
Rate and dutycycle are stronger, are then amplified the waveform by drive amplification module 3, and feed back to electricity by power output module 4
Heating tray for electrical cooker 5, and then control the temperature of heating dish 5.
Embodiment two：Present embodiment is the electricity powered to the 220V AC voltage described in embodiment one
Pot for cooking rice heater circuit is described further, and in present embodiment, temperature given value is embedded with waveform output module 2, waveform is defeated
Going out in module 2 also includes with lower unit：
Temperature collecting cell：The temperature signal that collection electronic temperature transmitter 1 exports in real time, and the temperature signal is sent
To comparing unit,
Comparing unit：By temperature signal compared with temperature given value, and comparative result is sent to waveform control list
Member,
Waveform control unit：The dutycycle and frequency of the comparative result adjustment output waveform obtained according to comparing unit, and
Output waveform.
The working cell in waveform output module 2 is specifically disclosed in present embodiment, judges to work as using comparing unit
Preceding heating dish state of temperature, i.e., whether need to improve heating power, if the temperature signal fed back to is weak, heating dish Current Temperatures
Low, the difference obtained more afterwards with temperature given value then increases the frequency and dutycycle of waveform, and then control heating dish work(with regard to big
Rate strengthens, on the contrary then reduce, and the course of work is simple and convenient, reduces development difficulty.
Embodiment three：Present embodiment is the electricity powered to the 220V AC voltage described in embodiment two
Pot for cooking rice heater circuit is described further, and in present embodiment, waveform output module 2 is microcomputer chip.
Embodiment four：Present embodiment is to 12V~24V DC-voltage supplies described in embodiment one
Electric cooker energy-saving circuit be described further, in present embodiment, waveform output module 2 export SPWM ripples.
SPWM ripples are pulse width modulation wave, and the voltage and current of SPWM ripples is variable, can be with frequency and dutycycle
Change and change, be easy to embody the change of temperature.
Embodiment five：Present embodiment is the electricity powered to the 220V AC voltage described in embodiment one
Pot for cooking rice heater circuit is described further, and in present embodiment, it also includes：Filter capacitor C1, filter capacitor C2, filter capacitor
C3, mu balanced circuit 6, resistance R1, resistance R2, resistance R3, switch S1 and diode D2；
The voltage input end of mu balanced circuit 6 and filter capacitor C1 positive pole connect positive source, the electricity of mu balanced circuit 6 simultaneously
Pressure output end connects the voltage input end of resistance R3 one end, filter capacitor C3 positive poles and drive amplification module 3, resistance R3 simultaneously
The other end simultaneously connect filter capacitor C2 positive poles, resistance R2 one end and switch S1 moved end, resistance R2 the other end connection
Diode D2 negative pole, S1 static side connection resistance R1 one end is switched, resistance R1 other end connection electric rice cooker heated disk 5
Power end, filter capacitor C1 negative pole, filter capacitor C2 negative pole, filter capacitor C3 negative pole and diode D2 positive pole simultaneously
With connecting power supply.
It is waveform output module 2, drive amplification module 3 and power output module 4 that the increased circuit of present embodiment, which is used for,
Stable voltage is provided.
Claims (5)
- The electric rice cooker heated circuit of 1.220V alternating voltages power supply, it is characterised in that it includes：Electronic temperature transmitter (1), ripple Shape output module (2), drive amplification module (3), power output module (4), filter capacitor C4, bridge rectifier D1 and fusing Device F1；Electronic temperature transmitter (1) is used for the temperature for gathering electric rice cooker heated disk (5) in real time,The temperature signal input of the temperature signal output end connection waveform output module (2) of electronic temperature transmitter (1),The Waveform Input end of waveform output module (2) waveform output end connection drive amplification module (3),The amplified signal input of the amplified signal output end connection power output module (4) of drive amplification module (3),The power input of the power take-off connection electric rice cooker heated disk (5) of power output module (4),The power end of electric rice cooker heated disk (5) connects filter capacitor C4 positive pole and a bridge rectifier D1 direct current simultaneously Output end,Filter capacitor C4 negative pole and bridge rectifier D1 another DC output end connect with power supply simultaneously,Bridge rectifier D1 ac input end connection fuse F1 one end,The positive pole of the fuse F1 other end and bridge rectifier D1 another ac input end access 220V AC voltage,The negative pole of bridge rectifier D1 another ac input end connection 220V AC voltage,The signal magnitude that waveform output module (2) feeds back according to electronic temperature transmitter (1) come control the frequency of output waveform and Dutycycle, when feeding back weaker, then the frequency of output waveform and dutycycle are stronger.
- 2. the electric rice cooker heated circuit of 220V AC voltage power supply according to claim 1, it is characterised in that waveform exports Temperature given value is embedded with module (2), is also included in waveform output module (2) with lower unit：Temperature collecting cell：The temperature signal of collection electronic temperature transmitter (1) output in real time, and the temperature signal is sent to Comparing unit,Comparing unit：By temperature signal compared with temperature given value, and comparative result is sent to waveform control unit,Waveform control unit：The dutycycle and frequency of the comparative result adjustment output waveform obtained according to comparing unit, and export Waveform.
- 3. the electric rice cooker heated circuit of 220V AC voltage power supply according to claim 1, it is characterised in that waveform exports Module (2) is microcomputer chip.
- 4. the electric rice cooker heated circuit of 220V AC voltage power supply according to claim 1, it is characterised in that waveform exports Module (2) exports SPWM ripples.
- 5. the electric rice cooker heated circuit of 220V AC voltage power supply according to claim 1, it is characterised in that it is also wrapped Include：Filter capacitor C1, filter capacitor C2, filter capacitor C3, mu balanced circuit (6), resistance R1, resistance R2, resistance R3, switch S1 and Diode D2；The voltage input end of mu balanced circuit (6) and filter capacitor C1 positive pole connect positive source simultaneously,The voltage output end of mu balanced circuit (6) connects resistance R3 one end, filter capacitor C3 positive poles and drive amplification module simultaneously (3) voltage input end,The resistance R3 other end connects the moved end of filter capacitor C2 positive poles, resistance R2 one end and switch S1 simultaneously,Resistance R2 other end connection diode D2 negative pole,S1 static side connection resistance R1 one end is switched,The power end of resistance R1 other end connection electric rice cooker heated disk (5),Filter capacitor C1 negative pole, filter capacitor C2 negative pole, filter capacitor C3 negative pole and diode D2 positive pole connect simultaneously With connecing power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510830303.0A CN105307293B (en) | 2015-11-25 | 2015-11-25 | The electric rice cooker heated circuit of 220V AC voltage power supply |
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| CN201510830303.0A CN105307293B (en) | 2015-11-25 | 2015-11-25 | The electric rice cooker heated circuit of 220V AC voltage power supply |
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| CN105307293A CN105307293A (en) | 2016-02-03 |
| CN105307293B true CN105307293B (en) | 2018-01-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107466117B (en) * | 2017-08-23 | 2020-12-08 | 四川虹美智能科技有限公司 | Controller, method for controlling heater body by controller and electric heater |
| CN109561519A (en) * | 2017-09-25 | 2019-04-02 | 佛山市顺德区美的电热电器制造有限公司 | Heating control apparatus and cooking apparatus |
| CN112531454A (en) * | 2020-11-13 | 2021-03-19 | 杭州电子科技大学 | Positioning and temperature control device and method of PPKTP crystal for quantum light preparation |
| CN113484925A (en) * | 2021-07-19 | 2021-10-08 | 思文量子技术(浙江)有限公司 | Near-infrared quantum light field imaging detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6246831B1 (en) * | 1999-06-16 | 2001-06-12 | David Seitz | Fluid heating control system |
| CN201623883U (en) * | 2010-02-05 | 2010-11-03 | 王洪海 | Special electromagnetic oven for locomotive |
| CN203136219U (en) * | 2013-01-04 | 2013-08-14 | 西安奥邦科技有限责任公司 | Monitoring system of large-power parallel connected/series connected resonant intermediate frequency power supply |
| CN104902601A (en) * | 2015-05-12 | 2015-09-09 | 长沙金定信息技术有限公司 | Novel variable frequency heating system |
-
2015
- 2015-11-25 CN CN201510830303.0A patent/CN105307293B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6246831B1 (en) * | 1999-06-16 | 2001-06-12 | David Seitz | Fluid heating control system |
| CN201623883U (en) * | 2010-02-05 | 2010-11-03 | 王洪海 | Special electromagnetic oven for locomotive |
| CN203136219U (en) * | 2013-01-04 | 2013-08-14 | 西安奥邦科技有限责任公司 | Monitoring system of large-power parallel connected/series connected resonant intermediate frequency power supply |
| CN104902601A (en) * | 2015-05-12 | 2015-09-09 | 长沙金定信息技术有限公司 | Novel variable frequency heating system |
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